Eight foot pitch: Difference between revisions

From formulasearchengine
Jump to navigation Jump to search
en>Racklever
mNo edit summary
en>Bhny
removed redundant first sentence
Line 1: Line 1:
{{refimprove|date=December 2012}}
fee to watch your webinar at their convenience. Once it is in place, [http://www.comoganhardinheiro101.com/?p=73 ganhando dinheiro na internet] promotion and possibly answering questions will be your only tasks. <br><br><br>It's easy to make money online. There is truth to the fact that you can start making money on the Internet as soon as you're done with this article. After all, so many others are making money online, why not you?
In [[mathematics]] '''normal convergence''' is a type of [[Convergent series|convergence]] for [[series (mathematics)|series]] of [[function (mathematics)|function]]s. Like [[absolute convergence|absolute-convergence]], it has the useful property that it is preserved when the order of summation is changed.


== History ==
Keep your mind open and you can make a lot of money. As you [http://www.comoganhardinheiro101.com/homebox/ ganhar dinheiro] can see, there are many ways to approach the world of online income. With various streams of income available, you are sure to find one, or two, that can help you with your income needs. Take this information to heart, put it to use and build your own online success story. Here is more info about [http://comoganhardinheiropelainternet.comoganhardinheiro101.com/ ganhar dinheiro] take a look at http://comoganhardinheiropelainternet.comoganhardinheiro101.com/  <br><br><br>Getting paid money to work online isn't the easiest thing to do in the world, but it is possible. If this is something you wish to work with, then the tips presented above should have helped you. Take some time, do things the right way and then you can succeed. Start your online [http://www.comoganhardinheiro101.com/homebox/ ganhando dinheiro na internet] earning today by following the great advice discussed in this article. Earning money is not as hard as it may seem, you just need to know how to get started. By choosing to put your right foot forward, you are heading off to a great [http://ganhedinheironainternet.comoganhardinheiro101.com/ start earning] money to make ends meet.<br><br>Make money online by selling your [http://comoganhardinheiropelainternet.Comoganhardinheiro101.com/ talents]. Good music is always in demand and with today's technological advances, anyone with musical talent can make music and offer it for sale [http://www.comoganhardinheiro101.com/caracteristicas/ ganhar dinheiro na internet] to a broad audience.


The concept of normal convergence was first introduced by [[René Baire]] in 1908 in his book ''Leçons sur les théories générales de l'analyse''.
By setting up your own website and using social media for promotion, you can share your music with others and sell downloads with a free PayPal account.
 
== Definition ==
Given a set ''S'' and functions <math>f_n : S \to \mathbb{C}</math> (or to any [[normed vector space]]), the series
:<math>\sum_{n=0}^{\infty} f_n(x)</math>
is called '''normally convergent''' if the series of [[uniform norm]]s of the terms of the series converges<sup>[http://eom.springer.de/N/n067430.htm]</sup>, i.e.,
:<math>\sum_{n=0}^{\infty} \|f_n\| := \sum_{n=0}^{\infty} \sup_S |f_n(x)| < \infty.</math>
 
== Distinctions ==
Normal convergence implies, but should not be confused with, [[uniform absolute convergence]], i.e. uniform convergence of the series of nonnegative functions <math>\sum_{n=0}^{\infty} |f_n(x)|</math>.  To illustrate this, consider
 
: <math>f_n(x) = \begin{cases} 1/n, & x = n \\ 0, & x \ne n. \end{cases}</math>
 
Then the series <math>\sum_{n=0}^{\infty} |f_n(x)|</math> is uniformly convergent (for any ''&epsilon;'' take ''n'' ≥ 1/''&epsilon;''), but the series of uniform norms is the [[harmonic series (mathematics)|harmonic series]] and thus diverges.  An example using continuous functions can be made by replacing these functions with bump functions of height 1/''n'' and width 1 centered at each natural number ''n''.
 
As well, normal convergence of a series is different from ''norm-topology convergence'', i.e. convergence of the partial sum sequence in the topology induced by the uniform norm.  Normal convergence implies norm-topology convergence if and only iff the space of functions under consideration is [[Banach space|complete]] with respect to the uniform norm.  (The converse does not hold even for complete function spaces: for example, consider the harmonic series as a sequence of constant functions).
 
== Generalizations ==
=== Local normal convergence ===
 
A series can be called "locally normally convergent on ''X''" if each point ''x'' in ''X'' has a neighborhood ''U'' such that the series of functions ''f''<sub>n</sub> restricted to the domain ''U''
:<math>\sum_{n=0}^{\infty} f_n\mid_U</math>
is normally convergent, i.e. such that
:<math>\sum_{n=0}^{\infty} \| f_n\|_U < \infty</math>
where the norm <math>\|\cdot\|_U </math> is the supremum over the domain ''U''.
 
=== Compact normal convergence ===
 
A series is said to be "normally convergent on compact subsets of ''X''" or "compactly normally convergent on ''X''" if for every compact subset ''K'' of ''X'', the series of functions ''f''<sub>n</sub> restricted to ''K''
:<math>\sum_{n=0}^{\infty} f_n\mid_K</math>
is normally convergent on ''K''.
 
'''Note''': if ''X'' is [[locally compact]] (even in the weakest sense), local normal convergence and compact normal convergence are equivalent.
 
== Properties ==
* Every normal convergent series is uniformly convergent, locally uniformly convergent, and compactly uniformly convergent. This is very important, since it assures that any re-arrangement of the series, any derivatives or integrals of the series, and sums and products with other convergent series will converge to the "correct" value.
* If <math>\sum_{n=0}^{\infty} f_n(x)</math> is normally convergent to <math>f</math>, then any re-arrangement of the sequence (''f''<sub>1</sub>, ''f''<sub>2</sub>, ''f''<sub>3</sub> ...) also converges normally to the same ''f''. That is, for every [[bijection (mathematics)|bijection]] <math>\tau: \mathbb{N} \to \mathbb{N}</math>, <math>\sum_{n=0}^{\infty} f_{\tau(n)}(x)</math> is normally convergent to <math>f</math>.
 
==See also==
*[[Modes of convergence (annotated index)]]
 
[[Category:Mathematical analysis]]
[[Category:Convergence (mathematics)]]

Revision as of 15:55, 17 February 2014

fee to watch your webinar at their convenience. Once it is in place, ganhando dinheiro na internet promotion and possibly answering questions will be your only tasks.


It's easy to make money online. There is truth to the fact that you can start making money on the Internet as soon as you're done with this article. After all, so many others are making money online, why not you?

Keep your mind open and you can make a lot of money. As you ganhar dinheiro can see, there are many ways to approach the world of online income. With various streams of income available, you are sure to find one, or two, that can help you with your income needs. Take this information to heart, put it to use and build your own online success story. Here is more info about ganhar dinheiro take a look at http://comoganhardinheiropelainternet.comoganhardinheiro101.com/  


Getting paid money to work online isn't the easiest thing to do in the world, but it is possible. If this is something you wish to work with, then the tips presented above should have helped you. Take some time, do things the right way and then you can succeed. Start your online ganhando dinheiro na internet earning today by following the great advice discussed in this article. Earning money is not as hard as it may seem, you just need to know how to get started. By choosing to put your right foot forward, you are heading off to a great start earning money to make ends meet.

Make money online by selling your talents. Good music is always in demand and with today's technological advances, anyone with musical talent can make music and offer it for sale ganhar dinheiro na internet to a broad audience.
By setting up your own website and using social media for promotion, you can share your music with others and sell downloads with a free PayPal account.